Financial institutions now face the important challenge of having to do multiple portfolio revaluations for their risk computation. The list is almost endless: from XVAs to FRTB, stress testing programs, etc. These computations require from several hundred up to a few million revaluations. The...

Researchers and practitioners who use Data Envelopment Analysis often want to incorporate several inputs and outputs in their model to consider as much relevant information as possible. However, too many inputs and outputs can result in the well-known dimensionality problem referred to as the...

This paper suggests a method of estimation of the implied volatility smile uncertainty of the observed options prices due to future risk-free rate uncertainty. The purpose is to quantify the range of uncertainty under different scenarios.We consider the setting where both the implied volatility...

The purpose of this study was to emphasize that the Data Envelopment Analysis (DEA) method is an important benchmarking tool which provides necessary information for improving business performance. To fulfil the abovementioned goal, we used a sample of 48 Slovak companies involved in the field...

How should you choose between risky options? This paper proposes reckoning, defined as the expectation for the lower of two draws from a variable's distribution. In symbols this is E[min(X_1,X_2)]. This is a special case of rank-dependent expected utility and provides a tractable alternative to...

This paper offers several contributions to actual research and discussion on monetary policy. It clarifies the relationship between uncertainty of inflation persistence and optimal monetary policy and discusses the consequences of the recent Blanchard proposal to implement a higher inflation...

Die Abhandlung zeigt für wiederholbare Prozesse eine universell anwendbare Ableitung eines Rechenalgorhithmus auf, mit dem unter Annahme einer Wahrscheinlichkeitsverteilung mögliche Plan-Istabweichungen und Aufallkosten zu einem Gleichgewicht und damit zu einem Ergebnisoptimunm führen....